Diagnosis of Oroya fever is confirmed by blood cultures. [merckmanuals.com]

Symptoms of Oroya fever include fever and profound anemia, which may be sudden or indolent in onset. The anemia is primarily hemolytic, but myelosuppression also occurs. Muscle and joint pain, severe headache, and often delirium and coma may occur. [merckmanuals.com]

Verruga peruana manifests as multiple skin lesions that strongly resemble bacillary angiomatosis; these raised, reddish purple skin nodules usually occur on the limbs and face. [merckmanuals.com]

Oroya fever and verruga peruana are infections caused by the gram-negative bacterium Bartonella bacilliformis. Oroya fever occurs after initial exposure; verruga peruana occurs after recovery from the primary infection. [merckmanuals.com]